River disk plow.



O. E. EACRETT. RIVER DISK PLOW APPLICATION FILED APR.25. 190a.

Patented Jan. 24, 1911;

2 SHEETS-SHEET 1.

6 /70/125 Z. Fae/"5Z5 G. E. EACRETT. RIVER DISK PLOW. APPLICATION FILEDAPR. 25. 1908.

Patented Jan. 24, 1911.

2 SHEETS-BHEBT 2.

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UNITED STATES PATENT OFFICE.

CHARLES E. nacnn'r'r,

To all whom it may concern:

Be it known that I, CHARLES E. EACRE'I'I, a citizen of the UnitedStates, residing at Malvern, in the county of Mills and State of Iowa,have invented a'new and useful River Disk Plow, of which the followingis a specification.

My invention relates to a river disk'plow and has for its object toprovide a simple, inexpensive and durable means which will stir up themud and sand in the bottom of a flowing stream, thus allowin the currentto clean it out and make a well efined channel.

Other objects of the invention will appear in the course of thefollowing specification. Referring to the accompanying drawings whereinlike characters of reference denote similar parts throughout the severalviews: Figure 1, is a plan view of my river plow as constructed inaccordance with my invention. Fig. 2, is a side elevation with one ofthe outer beams and lower connecting parts I broken away. Fig. 3, is adetail of one of 'the disks showing its connection with the beam.

' Referring to the drawings the reference character A, designates thestern of a suitable boat to which my apparatus is attached.

Connected at suitable points to the stern of the boat are a plurality ofsuitable brackets 1, to which are pivotally connected in suitable spacedrelation the beams 2, which extend downwardly and rearwardly as clearlyshown in Fig. 2. Connected to each of these beams 2 by means of suitablebrackets, 3, is a rearwardly extending member 4, which, at its extremityis provided with a suitable bearing 5. The above parts will hereinafterbe referred to as the disk carrying frame B. ,Working Within thisbearing f5, and at right angles to the members 4, are the disk operatingrods. 6, which are provided, with a suitable collar 7, engaging the topofthe bearings 5, as clearly shown. These rods 6. are guided at theirlower ends by means of the braces 8, and are threaded as at 9, and

connected to the threaded shanks 10, by means of the threaded coupling11. Suitable bearings 12, are secured to the lower ends of the beams2,for guiding the shanks 10. Rotary disks 13, are carried by the lowerends of each of the shanks 10, which when' pulled through the mud andsand will stirzthe same up thus allowing the current to move it alongmaking a well defined channel.

The upper ends of the disk operating rods Specifleationof LettersPatent. Application flledjpril 25, 1908. Serial'No. 429,208;

0]? MALVERN, IOWA.

6, it will be observed, are provided with an arm 14. Connected to theouter ends of these arms 14, are the connecting rods 15, which are, attheir opposite ends pivotally secured to the operating levers 16, whichare each provided with a spring pressed locking device and which leversin turnare each pivoted to the notched sector 17, secured to therearwardly extending members 4. It will be. observed by operating thelevers 16, the disks 13, are turned at any angle desired for cuttinginto thesand and mud. It will be further observed that I prefer, thoughnot necessarily, to locate the disk carrying frame B,'in pairs asclearly shown in Fig. 1, as by this arrangement they may be lockedtogether by means of a U-shaped locking link 18, thus preventing theouter ends of the disk carrying frame B, from spreading due to thestrain on the disk when cutting mud and sand.

It will be readily seen that each of the disk carrying frames is selfadjustable owin" to the fact that each is pivoted indepen ent of theother to the pivot rod 1. By this arrangement should one of the disksfall into a hole or run over a high place orrock it will readily adjustitself.

For raising each of the disk carrying frames out of the water forrepairing purposes and the like, I employ a drum 19 for each frame, eachof which is mounted on a shaft 20, .which shafts in turn are eachjournaled in the bearings 21 and rovided with a ratchet 22 at one end. A0g 23 is pivoted to each one of the bearings 21 adjacent said ratchets22 and are adapted to engage the ratchets to keep each of the cablesorthe like 24. which are wound around the drums 19 from unrolling. Thesecables 24 are always kept slack or loosened between the drums and thepoint of connection with the frames 25 and are sup orted intermediatetheir ends by means 0 the upwardly inclined arms 26, which have their uper ends each provided with a roller 27, ass own.

Patented Jan. 24, 19 11.

It will bereadily seen that when the apparatus is placed in a stream andthe disk set at the proper angle they will cut an open furrow thusloosening and stirring up the'mud and sand which the current quickly.parts described I produce an apparatus wherein the operation thereofmay be suc cessfully, conveniently and economically effected.

It is of course understood that vvarious changes in form, proportionsand minor details of construction may be resorted to and that myapparatus may be placed at either the stern or bowof the boat or bothWithout departing from the principle or sacrificing any of theadvantages of the invention.

What I claim is In a device of the class described, comprising incombination with a boat, a plus rality of spaced frame members pivotallyconnected to said boat, a shaft journaled at V eeame the outer end ofsaid frames, a stub-shaft removably secured to the lower end of each ofsaid shafts, a disk rotatably mounted at the lower end of each of saidstub-shafts; means for changing the angle of said disks, 20

CHARLES EACRET'L'Q Witnesses:

W. H. SALYERS, O. R. MARTIN.

